Watt i



UNITED STATES-1013513510111.-

war-r L. monnrmn, or. nos 1 HEATER non Murrow-IN E, I

Specification of Letters i'atent.-

raa my s, 1919.

Original application filed um. 20, ism-serial nausea. "niv ided'a nil this application fled November T 0 allwhom it concern; V 7

Los Angeles, in the county of Los Angeles and State of California, have inventedcertain new and useful Improvements in Heaters for Manifold-Intakes; and I do hereby declare the followin to be a full, clear, and

exact description 0 the invention, such as will enable others. skilled in the art to which 5 it appertains to make and use the same.'

This invention relates to. improvements an intake manifolds for internal combustion 1 engines and more particularly to a starting apparatus for initially heating the combustlatter'is cold. y r p It is one of the objects of the present invention to provide a simple,practical and eflicient and reliable starting apparatus in combination with an intake pipe of an internal combustion engine; and a further object is to provide for the. ready control of the combustible fluid passing through the ible fuel drawn into the engine when the;

starting apparatus.

With these and other objects in view the invention consists of certain novel constructions, combinations and arrangements of parts as will be hereinafter described relative to the embodiment of the invention illustrated in the accompanying drawing.

The figure is a vertical, central sectional view through the intake manifold connection from the carburetor to the manifold head of an internal combustion engine.

In the apparatus disclosed there is rovided means for controlling the initial eat of the gaseous mixture to facilitate the starting of a cold engine, and while the engine is cold heating the fluid by means comprising an-electric heater so as to be capable of heating a portion or all of the gaseous mixture which enters the intake manifold indicated at 8. The preferable form of the heating apparatus is shown in the accompanying drawing.

A flue or gas pipe 17, extended from the carburetor a portion of which is shown at 14, is formed with a by-pass' extension 31, usually in tubular form as here indicated,

and having ports 32 and 33 near the 11 per p pe 17 -between said pans-33 5.11.132 which, Be it known that I, WarrL. MQRLELAND,

a citizen of the United States, residing at.

when closed will prevent the passage of the mixture thus drawn throu h said ipe 17 and will direct the same t rough t e said by-pass 31. The throttle is-carried by a stem 35 whichprojectsthrough an opposite wall of 'thepipe 17 and which has a lever 36 secured toone end thereof bywhich'the' throt tle valve may be operated. When said valve is open it will extend parallel with the axis of t e pipe 17 and thus permit the mixture to re'ach the manifold or head 8, without having to pass through the by-pass extension 31.

Within the said' by-pass extension31 is mounted a suitable electric heatin device made'up of resistance wires or laments 37 which are secured attheir ends to disks 38 and 39, preferably of insulating material. At their upper ends the said wires or filaments engage a disk'40 which is mounted; between the insulating disks 38 and 41. The wires 37 also pass through a metallic disk 42. Both the disks 40 and 42 engage the metal of the by-pass extension 31 at their edges so as'to establish electric connection with the metal of the piping which forms a ground upon the engine.

The lower ends of the wires or filaments 37 also pass through a metallic disk 43 and engage a second metallic disk 44, the latter disk being held between the insulating disk 45 below the same. and insulating d1sk 39 above the same. The disks 43 and 44 in this instance are made smaller than the bore of the by-pass extension and do not form any electrical connection with the metal thereof, but on-the contrary are insulated therefrom. A rod 46 connects the disks at the u peer and lower ends of the filaments or wires 37, the said rod passing throughan insulating sleeve '47 at the top so as to be comgletel insulated from the upper set of dis s', wlii said rod is in the; electrical contact with the disk 43. A reduced stem 48 on the u er end of said rod extends through an insu ating sleeve 49- in the ca piece 50 which closes 1e at the lower and the upper end of the y-pass extension, and

projects far enough beyond the saidsleeve to form a binding post foran electrical. o0n-. d-uctor or wire 51. A nut 52 on said bind ing post securely holds the conductor or wire 51 in place. The conductor 51' extends to any suitable source of electricity not shown and a current may be sent through the wires 37 to ground for heating the resistance wires 37 whenever desired.

When the throttle 34 is closed a circuit may be completed through the said resistance so that a fuel mixture that passes through the by-pass will be heated and thoroughly gasified in sufficient quantities to insure the starting of the engine. After the engine has been well started the throttle 34 is opened and the current of electricity through the resistance is discontinued.

This application is a division of my application filed March 20, 1916, Serial Number 85,369.

What is claimed is:

1. An apparatus for heating carbureted air for starting internal combustion motors, comprising a manifold section having lateral ports and having a shutter intermediate its ends to direct flow of air through said lateral ports thereof, a heating chamber extending along one side of the section and communicating through said ports and forming a by-pass for the carbureted air, and electrical resistance coils in the by-pass chamber whereby the flowing air may be heated prior to entry to the motor, the said coils arranged in an organized unit bodily removable from the chamber.

'said lateral ports thereof, a heating chamber extending along one side of the section and communicating through said ports and forming a by-pass for the carbureted air, and electrical resistance coils in the by-pass chamber whereby the flowing air may be heated prior to entry to the motor, the said coils arranged in an organized unit bodily removable from the chamber, said unit comprising a rod on which is mounted spaced disks to which the ends of the coils are connected, the coils extending from disk to disk beside and spaced from the rod so as to be Wholly exposed to the passing air.

In testimony whereof I aifix my signature.

WATT L. MORELAND. 

